Motor-operated mopping device



D. 30,1941. H. J. HUNN ETAL 2,268,073

MOTOR-OPERATED MOPPING DEVICE 4 Sheets-Sheet 1 Filed Dec. 2a, 1940 .2. fianrait IN VEN RS.

BYM

ZTTORNEYS.

H. J. HUNN EI'AL MOTOR-OPERATED MOPPING DEVICE Filed Dec. 23, 1940 4 Sheets-Sheet 2 Dec.30, 1941.

INVEN ATTORNEYS.

)Z 17.171072 1. lfamflaZg y Dec. 30, 1941. H. JPHUNN ETAL MOTOR-OPERATED MOPPIIkG DEV1CE Filed Dec. 25, 1940 4 Sheets-Sheet 3 INVENTO 4 T TORNEYS.

9 H. J. HUNN ETAL 2,268,073

MOTOR-OPERATED MOPPING DEVICE Filed Dec. 25, 1940 4 Sheets-Sheet 4 mun IN V EN 7' 0R8- A TTORNEYS.

Patented Dec. 30, 1941 FF 1 CE MOTOR-OPERATED MOPPING DEVICE Harold J. Hunn and Patrick Hanratty, Pittsburg, Calif.

Application December 23, 1940, Serial No. 371,450

2 Claims.

This invention relates to motor-operated floor mopping and polishing machines, the primary object of the invention being to provide a floor mopping machine embodying tanks for containing the mopping liquid, and endless mopping elements movable through the tanks, the mopping elements being movable over the floor surface carrying, the mopping liquid or solution to the floor to accomplish the mopping result.

An important object of the invention is to provide a :mopping machine of this character in which a pair of endless mopping elements are used, the mopping elements operating in opposite directions to effectively mop or cleanthe floor, and at the same time steady the machine and preventthe machine from being moved forwardly too rapidly, by the action of the mopping. elements contacting with the floor surface.

Another, object of the invention is to provide a mopping machine having wringer or pressure rollers between which the mopping elements operate, means being provided for regulating the pressure directed to the rollers, thereby adapting the machine for use in mopping wherein greater or less quantities of mopping solution are required to accomplish the mopping, result.

With the foregoing and other objects in view, whichwill appear as the description. proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it beingunderstood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawings:

Figure ,1 is a side elevational view of a mopping device constructed in accordance with the invention.

Figure 2 is a side elevational view of the mop, illustrating the opposite side thereof.

Figure 3 is a plan View of the device.

Figure 4 is a sectional view taken on line 4-4 of Figure 1.

Referring to the drawings in detail, the machine comprises a body portion 5 which is in the form of a rectangular tank open at its top.

Arms indicated by the reference character 6 extend forwardly from the side walls of the tank, adjacent to the lower front edge of the tank, and are provided with bearing openings adjacent to their outer ends, for the reception of the shafts l of the forward rollers 8, the inner of the bracket 9 that is secured to the front wall of the body portion 5, as clearly shown by Figure 3 of the drawings. At the reartendof the body portion 5, are rearwardly extended arms [0 that also have bearing openings to receive the outer ends of the shafts H on which the rear rollers l2 are mounted, the, inner ends of the shafts I-I being supported in brackets extending from the rear wall of the body portion 5, and corresponding in structure to the bracket 9;

Extending upwardly from the body portion 5, and secured to the side walls of the body portion, are arms l3 in which the outer ends of the shafts M are mounted, the inner ends of the shafts l4 being mounted in bearings formed in the upper ends of the brackets I5 that are mounted on the transversely disposed brace bar, l6 that connects the upper edges of the side walls of the body portion. The shafts l4 support the rollers I1.

At the forward end of the body portion 5, and extending upwardly from the side walls of the body portion, are arms l8 that have bearing openings in which the outer ends of the shaft l9 are mounted, the inner ends of the shaft I9 being supported in the bracket 20 that is secured to the brace bar 2| that also connects the opposite side walls of the body portion 5.

These shafts [9; support, rollers 22. Cooperating with one of the rollers 22, is a pressure therewith.

A threaded rod indicated at 26 has one of its ends anchored to the arm It at one side of the body portion, and is provided with a winged nut 21 adapted to engage the arm 25 associated therewith, to exert pressure on the arm andconsequently move the pressure roller 23 towards the roller 22 with which it cooperates.

At the opposite side of the machine, is a pressure roller 28 that is likewise supported on the pivoted arms 29, the roller 28 being moved towards the roller ll' associated therewith, by means of the threaded rod 30 which has one of its ends secured against, movement, the threaded end of the rod being supplied with a winged nut 3| so that the winged nut may be operated to move the arms 29 and roller 28 carried thereby,

towards the cooperating roller l1.

Mounted within the body portion 5, are spaced bars 32 that are formed with downwardly exends of the shafts I being supported in openings tended notches 33 that accommodate the shafts through the chain 48 and sprockets 49.

34 on which the submerged rollers 35 are mounted. Due to this construction, it will be obvious that by adjusting the shafts 34 to various notches 33, the positions of the rollers 35, may be adjusted to meet various requirements.

The reference character 36 designates the endless mopping members which are constructed of suitable material to absorb mopping solution contained in the body portion, and carry the washing solution to the surface under treatment. As clearly shown by the drawings, these endless mopping members move over the various rollers of the machine, and pass into the tank, picking over. By raising or lowering the arms 55, the proper slack in the chains, may be insured at all times.

The handles of the machine are indicated by the reference character 56, and the wires leading to the electric motor 42, are supported by these handles. A switch 58 is located on the handles 56, for the convenience of the operator.

Secured to the motor-supporting frame 31, are arms 59 that are formed with bearing openings to receive the shaft 60 on which the rollers BI are mounted, so that the machine may be up material, carrying the washing solution up-- wardly between the pressure rollers and rollers cooperating therewith, to the end that surplus washing solution is moved therefrom and falls back into the tank. The mopping members, because of their thickness, extend below the bottom of the tank, and contact with the surface.

The reference character 31 designates the motor-supporting frame, which has wide end members 38 formed with downwardly inclined notches 39 that are adapted to slide under the heads 40 of the supporting pins that extend laterally from the side walls of the body portion 5. Bolts 4| are provided to secure the motorsupporting frame, after it has been positioned on one end of the body portion. V

The motor-indicated at 42 is mounted on the frame 31, the shaft of the motor being supplied with the sprocket 43 that transmits motion to the power shaft 44 extending throughout the length of the frame 31, through the medium of the chain 45 and substantially large sprocket 46 mounted on one end of the power shaft 44. Sprocket 41 is also mounted on the shaft 44 and. transmits motion to the shafts B, H, l4 and I9, At one side of the body portion is a sprocket 50 over which the chain 48 also moves.

At the opposite side of the machine, movement is transmitted to the various rollers, by means of the sprocket 5| which is secured to the power shaft 44. Sprockets 52 are secured to the outer ends of the shaftsfi, ll, l4 and [9 at the opposite side of the machine, over which the chain 53 operates. At this side of the machine, it will be obvious that the chain 53 moves over the sprocket 5! of the power shaft, while at the opposite side of the machine, the chain moves under, the sprocket 41 mounted on the-power shaft, with the result that the chains are moved in opposite directions, and the rollers of each pair of rollers, are operated in opposite directions.

The endless mopping member 36 at one side of the machinewill move in a direction opposite to the movement of the mopping member at the opposite side of the machine.

In order that slack in the chains may be taken up, idle sprockets 54 are adjustably mounted on the arms 55 so that the chains may move theretilted rearwardly and rolled over the surface when the machine is being moved from place to place. By lowering the machine, it will be obvious that the weight of the body portion will be supported on the lower front and rear rollers, the endless mopping member operating between the rollers and the surface under treatment.

In the use of the device as a mopping machine, a suitable mopping solution is placed within the tank. The motor 42 is thrown into operation which rotates the various rollers and mopping members, the mopping members moving in opposite directions, carrying the mopping solution to the floor surface to accomplish the purpose of the invention.

Because the mopping members move in op-' posite directions, it will be seen that the machine will be held stationary, the action of one mopping member counteracting the action of the other mopping member to holdthe machine stationary. i

As the machine is moved over the floor manually, it will be obvious that the mopping result will be accomplished. R

What is claimed is:

1. A surface treating machine comprising a body portion in the form of'a tank, pairs of spaced rollers mounted on the body portion, a pair of spaced rollers mounted Within the tank, endless surface-engaging members operating over the rollers and adapted to carry material onto the surface under treatment, and means foroperating th'e'rollers in opposite'dir'ections, whereby the endless surface-engaging members operate in opposite directions' l 2. A surface treating machine, comprising a body portion in the'form of a tank having an open top, pairs of rollers mounted on the body portion adjacent to the sides thereof, the rollers of each pair, operating in opposite directions, and the rollers of 'each side of the machine adapted to operate in 'the same direction, endless surface-engaging membersope'rating over the rollers, said surface-engaging members moving in opposite directions, and a-motor mounted on the body portion and adapted to-operate said rollers of each pair in opposite directions.

' HAROLD J. HUNN. PATRICK HANRATTY. 

